Resources Resources, research, data & other tools Resource DirectoriesExecutive OrdersPermits, Certifications, Verifications, and RegistrationsFormsDatabase ApplicationsResearchA-Z indexVapor RecoveryEducational ResourcesVideos Keywords Airborne ToxicsAir PollutionAir Quality MonitoringClimate ChangeCommunitiesConsumer Products(-)EnforcementFuelsHealthIndoor Air Quality & ExposureResearchSimple Solutions to Improve Air QualityTruck & BusZero-Emission TransportationAir Quality TrainingCargo Tank Vapor RecoveryCommunity Outreach and EnforcementDiesel Enforcement(-)Diesel Vehicles(-)Enforcement of Clean Truck Check HD I/M Regulation(-)Enforcement Policy & ReportsEquipment and Process Precertification Program (Stationary Sources Only)Portable Equipment Registration Program (PERP)Truck and Bus Regulation Truck Loan Assistance Program(-)Fact SheetInformationLegal DocumentReports 3 results found for Fact SheetOn-Board Diagnostics (OBD) Testing Devices Fact SheetDMV Compliance Verification Fact SheetEnforcement Administrative Hearings & Penalty Program Featuredthe TruckStop Diesel truck informationDriveClean Buying guide for clean and efficient vehiclesBreathe Well Air quality in your neighborhood